Class 12 Biology Smart Syllabus 2026-27 PDF Download Punjab Board
PECTAA 2nd Year Biology ALP 2026-27 - Deleted Topics & Questions
Class 12 Biology Smart Syllabus 2026-27 PDF Download – Punjab Board
The Class 12 Biology Smart Syllabus 2026-27 has officially been issued by the Punjab Education, Curriculum, Training and Assessment Authority (PECTAA), Lahore under the Accelerated Learning Program (ALP). This revised syllabus is applicable to Intermediate Part-II (2nd Year) students appearing in the Punjab Boards Annual Examination 2027. It provides a detailed chapter-wise list of deleted topics, excluded exercise questions and reduced textbook content to help students prepare according to the latest examination requirements.
Students can download the 12th Class Biology ALP Smart Syllabus 2026-27 PDF free of cost from this page. The official document identifies deleted Biology topics, MCQs, short questions, long questions and other excluded content from the textbook. It also includes the updated Biology Pairing Scheme 2027 and Model Paper, making it a useful resource for students, teachers, colleges and educational institutions across Punjab.
Class 12 Biology ALP Smart Syllabus 2026-27 – Important Details
- Class: 12th Class / Intermediate Part-II
- Subject: Biology
- Program: Accelerated Learning Program (ALP)
- Academic Session: 2026-27
- Examination: Annual Examination 2027
- Issued By: PECTAA Lahore
- Notification Number: PECTAA/C&C Unit/2026/1258
- Notification Date: 14 November 2026
- Document: Deleted Topics and Exercise Questions
- Additional Material: Pairing Scheme and Model Paper
- PDF Download: Free
What is the 12th Class Biology Smart Syllabus 2026-27?
The Biology Reduced Syllabus 2026-27 has been introduced to help students complete their prescribed curriculum effectively within the academic session. Under the Accelerated Learning Program, PECTAA has identified specific textbook topics and exercise questions that have been excluded from the BISE Annual Examination 2027.
The revised syllabus covers chapters related to Thermoregulation and Osmoregulation, Human Urinary System, Human Nervous System, Human Endocrine System, Inheritance, Chromosomes and DNA, Biotechnology, Immunity, Pharmacology, Evolution and Ecology. Students should check the official deletion list carefully to identify the exact excluded content.
Chapter-Wise Deleted Topics in Class 12 Biology 2026-27
The following chapters contain selected deleted topics and exercise questions according to the PECTAA Biology ALP Smart Syllabus 2026-27.
Students should compare these details with their Biology textbook and check the relevant page numbers before examination preparation.
Chapter 13 – Thermoregulation and Osmoregulation
Deleted Topics:- 13.1.1 – Basic Mechanism of Homeostasis (Pages 1–2).
- 13.2.3 – Nature of Excretory Products in Relation to Habitat (Pages 7–8).
- MCQs No. 6, 7 and 8.
- Short Answer No. 4 (last two bullets).
- Long Questions No. 1 and 4.
- All Inquisitive Questions.
Chapter 14 – Human Urinary System
Deleted Topic:- 14.3 – Disorders of Urinary Tract (Pages 19–24).
- MCQs No. 9 and 10.
- Short Answers No. 6, 7 and 8 (parts ii and iii).
- Long Questions No. 5, 6 and 7.
- All Inquisitive Questions.
Chapter 15 – Human Nervous System
Deleted Topics:- Table: Twelve Pairs of Cranial Nerves and Their Functions (Page 43).
- Table: Effects of Autonomic Nervous System on Body Parts (Page 45).
- 15.6 – Receptors in Human Body (Pages 45–48).
- 15.7 – Effects of Drugs on Nervous Coordination (Pages 48–51).
- 15.8 – Disorders of Nervous System (Pages 51–53).
- 15.9 – Diagnostic Tests for Nervous Disorders (Pages 53–55).
- MCQs No. 12–17.
- Short Answers No. 1, 2, 7–11 and 12 (last bullet).
- Long Questions No. 12–18.
- All Inquisitive Questions.
Chapter 16 – Human Endocrine System
Deleted Topics:- 16.1.1 – Chemical Nature of Hormones (Pages 59–61).
- Box: Artificially Synthesized Steroids (Page 70).
- 16.2.8 – Other Endocrine Glands/Tissues (Pages 70–71).
- 16.3 – Feedback Mechanism in Endocrine System (Pages 71–72).
- MCQ No. 5.
- Short Answers No. 1, 2 and 9 (last bullet).
- Long Questions No. 2 and 7.
- All Inquisitive Questions.
Chapter 17 – Human Reproductive System
Excluded Exercise Questions:- All Inquisitive Questions (Page 84).
Note: No other deleted topic or exercise question is listed for this chapter in the PECTAA deletion table.
Chapter 18 – Inheritance
Deleted Topics:- 18.2.1 – Limitations to the Law of Independent Assortment (Pages 90–91).
- 18.2.2 – Inheritance and Mathematical Probabilities, including the box (Pages 91–92).
- 18.5 – Polygenic Inheritance and Epistasis (Pages 98–102).
- 18.8.3 – Sex Limited and Sex Influenced Traits (Pages 112–113).
- MCQs No. 9 and 13.
- Short Answers No. 1, 2, 12, 15 (iv and v), and 16 (bullets 6, 9 and 10).
- Long Questions No. 4, 5 and 11.
- All Inquisitive Questions.
Chapter 19 – Chromosomes and DNA
Deleted Topics:- Difference Between DNA Replication in Prokaryotes and Eukaryotes (Page 131).
- Stability and Variability in DNA (Page 131).
- 19.7 – Regulating Gene Expression (Pages 142–144).
- Box: Minor Mutations in Humans (Page 146).
- Box: Possible Ways to Treat Genetic Diseases (Page 148).
- Tidbit (Page 152).
- Short Answers No. 7 and 8 (Repressor and Activated Proteins).
- Long Questions No. 11 and 12.
- All Inquisitive Questions.
Chapter 20 – Biotechnology
Deleted Topic:- 20.4 – Genetically Modified Organisms (GMO) (Pages 164–167).
- MCQ No. 10.
- Short Answer No. 5.
- All Inquisitive Questions.
Chapter 21 – Immunity
Deleted Topic:- 21.3.2 – Cell Mediated and Antibody Mediated Immunity (Pages 179–184).
- MCQ No. 10.
- Short Answer No. 7 (last bullet).
- Long Questions No. 6 and 7.
- All Inquisitive Questions.
Chapter 22 – Biostatistics (Completely Deleted)
Entire Chapter 22 – Biostatistics has been deleted from the Class 12 Biology Smart Syllabus 2026-27.
According to the official PECTAA notification, the complete chapter is excluded from the Annual Examination 2027.
Textbook Pages: 188–209
Chapter 23 – Pharmacology
Deleted Topic:- 23.4 – Monoclonal Antibodies (Pages 214–215).
- MCQ No. 6.
- Short Answer No. 5.
- Long Question No. 3.
- All Inquisitive Questions.
Chapter 24 – Evolution
Deleted Topic:- 24.3 – Evidences of Evolution (Pages 221–223).
- MCQs No. 2, 3 and 8.
- Short Answers No. 2, 3 and 8 (second bullet).
- Long Questions No. 3, 4, 5 and 6.
- All Inquisitive Questions.
Chapter 25 – Ecology
Deleted Topics:- 25.1 – Levels of Ecological Organization (Pages 230–232).
- 25.4 – Characteristics of Population (Pages 237–240).
- 25.6 – Important Ecosystems of Pakistan (Pages 243–246).
- MCQs No. 1 and 5.
- Short Answers No. 5, 6, 9, 10, 11 and 12 (bullets 1, 3 and 4).
- Long Questions No. 4, 6 and 7.
- All Inquisitive Questions.
Class 12 Biology Pairing Scheme 2027 – Paper Pattern
PECTAA has also issued the Biology Pairing Scheme 2027 for Intermediate Part-II. The scheme explains the distribution of MCQs, short questions and long questions for the Punjab Board Annual Examination 2027.
Biology Paper Marks Distribution
| Paper Section | Marks |
|---|---|
| Objective (17 MCQs) | 17 |
| Short Questions | 44 |
| Long Questions | 24 |
| Total Marks | 85 |
Subjective Paper Time: 2 Hours and 40 Minutes.
Objective Part – 17 Marks
The objective section contains 17 MCQs. According to the official pairing scheme, MCQs are distributed among Chapters 13–21 and Chapters 23–25.
Subjective Part – 68 Marks
- Q.2: Attempt any 8 out of 12 short questions – 16 marks.
- Q.3: Attempt any 8 out of 12 short questions – 16 marks.
- Q.4: Attempt any 6 out of 9 short questions – 12 marks.
- Q.5–Q.9: Attempt any 3 out of 5 long questions – 24 marks.
Each long question consists of two parts carrying 4 marks each.
How to Prepare for the 2nd Year Biology Board Examination 2027?
Students should follow the latest PECTAA Biology ALP Smart Syllabus while preparing for their Intermediate Part-II examinations. The following suggestions can help organise examination preparation:
- Download the official Biology Smart Syllabus 2026-27 PDF.
- Check all deleted topics chapter by chapter.
- Identify excluded MCQs, short questions and long questions.
- Pay attention to the completely deleted Chapter 22 (Biostatistics).
- Revise all remaining prescribed textbook content.
- Practise MCQs and short questions from the included syllabus.
- Use the official Biology Pairing Scheme 2027 for paper preparation.
- Practise the official PECTAA Model Paper.
Download Class 12 Biology Smart Syllabus 2026-27 PDF
Students and teachers can download the official PECTAA Grade 12 ALP Smart Syllabus to check deleted Biology topics, excluded exercise questions, pairing scheme and model paper.
DOWNLOAD OFFICIAL PDFFree Download | Biology Grade 12 | ALP Smart Syllabus 2026-27
Important Instructions for Students and Teachers
The deleted topics and exercise questions listed above are based on the PECTAA Smart Syllabus notification. Students should remember that only the specifically excluded content is removed from the examination syllabus. All other prescribed textbook content remains relevant for the BISE Annual Examination 2027.
Teachers and colleges are advised to consult the original notification for complete details and guide students according to the revised syllabus.
Explore More Class 12 Smart Syllabus 2026-27
Students can also explore other subject-wise PECTAA Smart Syllabus 2026-27 updates for Intermediate Part-II:
Official Notification Reference
Authority: Punjab Education, Curriculum, Training and Assessment Authority (PECTAA), Lahore.
Notification No: PECTAA/C&C Unit/2026/1258.
Date: 14 November 2026.
Academic Session: 2026-27 | BISE Annual Examination 2027.
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Smart Syllabus / Accelerated Learning Programme
(ALP) Biology Grade-12
for Academic Session 2026-27 & BISE Exam-2027
| Chapter No. / Name | Excluded Topics and Exercise Questions | Page No. |
|---|---|---|
| 13.Thermoregulation and Osmoregulation | 13.1.1/Basic mechanism of homeostasis | 1-2 |
| 13.2.3/ Nature of Excretory Products in relation to Habitat | 7-8 | |
| MCQ No. 6, 7 & 8 | 32 | |
| Short answers No. 4 last two bullets | 11 | |
| Long questions No. 1 & 4 | 12 | |
| All Inquisitive Questions | 12 | |
| 14.Human Urinary System | 14.3/ Disorders of Urinary Tract | 19-24 |
| MCQ No. 9 & 10 | 25 | |
| Short answers No. 6, 7, 8 (ii & iii) | 25 | |
| Long questions No. 5, 6 & 7 | 25 | |
| All Inquisitive Questions | 25 | |
| 15.Human Nervous System | Table: Twelve pairs of Cranial Nerves &their Functions | 43 |
| Table: effects of Autonomic Nervous System on Body Parts | 45 | |
| 15.6/ Receptors in Human Body | 45-48 | |
| 15.7/ Effects of Drugs on Nervous Coordination | 48-51 | |
| 15.8/ Disorders of Nervous System | 51-53 | |
| 15.9/ Diagnostic Tests for Nervous Disorders | 53-55 | |
| MCQ No. 12-17 | 57 | |
| Short answers No. 1, 2, 7-11, 12 last bullet | 57-58 | |
| Long questions No. 12-18 | 58 | |
| All Inquisitive Questions | 58 | |
| 16.Human Endocrine System | 16.1.1/Chemical Nature of Hormones | 59-61 |
| Box: Artificially synthesized steroids | 70 | |
| 16.2.8/ Other Endocrine glands/tissues | 70-71 | |
| 16.3/ Feedback Mechanism in Endocrine System | 71-72 | |
| MCQ No. 5 | 73 | |
| Short answers No. 1, 2, & 9 last bullet | 73-74 | |
| Long questions No. 2 & 7 | 74 | |
| All Inquisitive Questions | 74 |
Smart Syllabus / Accelerated Learning Programme
(ALP) Biology Grade-12
for Academic Session 2026-27 & BISE Exam-2027
| Chapter No. / Name | Excluded Topics and Exercise Questions | Page No. |
|---|---|---|
| 17.Human Reproductive System | All Inquisitive Questions | 84 |
| 18.Inheritance | 18.2.1/ Limitations to the Law of Independent Assortment | 90-91 |
| 18.2.2/ Inheritance and Mathematical Probabilities along with the box | 91-92 | |
| 18.5/ Polygenic inheritance and Epistasis | 98-102 | |
| 18.8.3/Sex Limited and Sex Influenced Traits | 112-113 | |
| MCQ No. 9 & 13 | 114-115 | |
| Short answers No. 1, 2, 12, 15 (iv& v), 16 (Bullet No. 6, 9 and 10) | 115-116 | |
| Long questions No. 4, 5 & 11 | 116 | |
| All Inquisitive Questions | 116 | |
| 19.Chromosomes and DNA | Difference between DNA replication in prokaryotes and Eukaryotes | 131 |
| Stability and Variability in DNA | 131 | |
| 19.7/ Regulating Gene Expression | 142-144 | |
| Box: Minor Mutations in Humans | 146 | |
| Box: Possible ways to treat Genetic Diseases | 148 | |
| Tidbit | 152 | |
| Short answers No. 7, 8 (Repressor and Activated proteins) | 154-155 | |
| Long questions No. 11, 12 | 155 | |
| All Inquisitive Questions | 156 | |
| 20.Biotechnology | 20.4/ Genetically Modified Organisms (GMO) | 164-167 |
| MCQ No. 10 | 169 | |
| Short answers No. 5 | 169 | |
| All Inquisitive Questions | 170 | |
| 21.Immunity | 21.3.2/Cell Mediated and Antibody mediated Immunity | 179-184 |
| MCQ No. 10 | 186 | |
| Short answers 7 last bullet | 187 | |
| Long questions No. 6 & 7 | 187 | |
| All Inquisitive Questions | 187 | |
| 22.Biostatistics | Whole chapter is deleted. | 188-209 |
| 23.Pharmacology | 23.4/ Monoclonal Antibodies | 214-215 |
| MCQ No. 6 | 215 |
Smart Syllabus / Accelerated Learning Programme
(ALP) Biology Grade-12
for Academic Session 2026-27 & BISE Exam-2027
| Chapter No. / Name | Excluded Topics and Exercise Questions | Page No. |
|---|---|---|
| Short answers 5 | 216 | |
| Long questions No. 3 | 216 | |
| All Inquisitive Questions | 216 | |
| 24.Evolution | 24.3/ Evidences of Evolution | 221-223 |
| MCQ No. 2, 3 & 8 | 227 | |
| Short answers No. 2, 3 & 8 (second bullet) | 228 | |
| Long questions No. 3, 4, 5 & 6 | 228 | |
| All Inquisitive Questions | 228 | |
| 25.Ecology | 25.1/Levels of Ecological Organization | 230-232 |
| 25.4/ Characteristics of Population | 237-240 | |
| 25.6/ Important Ecosystem of Pakistan | 243-246 | |
| MCQ No. 1 & 5 | 246-247 | |
| Short answers No. 5, 6, 9, 10, 11, 12 (1, 3 and 4 bullet) | 248 | |
| Long questions No. 4, 6 & 7 | 248 | |
| All Inquisitive Questions | 248 |
